Loss of simultaneity explained by classical physics

In summary, the concept of simultaneity is frame dependent in special relativity, meaning that different observers can have different ideas of what is happening "now" in a given event. This is due to the finite speed of light and the principle of relativity. Therefore, it is not necessary to go outside of classical physics to explain loss of simultaneity, as it is a fundamental aspect of special relativity.
  • #36
On the incorrect classical assumption that the speed of light would be different for different observers they probably would have incorrectly concluded


its not about what they would have concluded, its about what a hypothetical purely classical object in a hypothetical purely classical universe would do.
 

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